How we review

Each list follows the same process:

  1. Shortlist from respected UK test reviews (for example Which?, Ideal Home, Homebuilding & Renovating, Trusted Reviews), keeping only models currently on sale in the UK.
  2. Rank on criteria suited to the category (for heaters: heating for size, noise, ease of use and portability, value).
  3. Price-check each product's RRP and street price at two or more named UK retailers where possible, recording the date.
  4. Pros & cons come from what the reviewers actually reported. Every list says whether we tested products hands-on or not.
  5. Cite sources on every list and show a last-updated date. We only change the date when the content has actually changed.
Automation: AI-assisted tools may help with research and drafting. A human checks every fact and price before publication, and each list says how it was made.
Images: we use our own illustrations, licence-clear photos (credited), or AI-generated illustrations labelled as such. We don't use retailer or brand photos without permission.